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Development of Radiosensitizing Fiducial Marker by Nano Particle Delivery

Research Project

Project/Area Number 19K17235
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionKobe University

Principal Investigator

Wang Tianyuan  神戸大学, 医学部附属病院, 医学研究員 (90757288)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords放射線治療用マーカー / 生体吸収性材料 / 治療マーカー / ナノ粒子
Outline of Research at the Start

本研究は放射線治療分野における放射線増感効果を因子として、申請者らが独自に開発した無機物ナノ粒子をデリバリー可能な埋め込み型治療マーカーの新規開発である。申請者らがナノ粒子化したチタン酸化物がX線照射によって大量のヒドロキシラジカルを発生することを発見した。この増感効率を極めて向上させるため、腫瘍近傍に留置される視認性金属マーカーを利用し、マーカーからリリースされるナノ粒子が腫瘍に直接取り込まれ、照射期間中最大の抗腫瘍効果をもたらす新たな治療デバイスの開発を目的とする。

Outline of Final Research Achievements

This research is a novel development of an implantable therapeutic marker capable of delivering inorganic nanoparticles. The applicants developed independently using the radiosensitizing effect as a factor for radiotherapy . We found that nanoparticles of titanium oxide generate a large amount of hydroxyl radicals upon X-ray irradiation. In order to extremely improve this sensitization efficiency, we aim to develop a new therapeutic device that utilizes a visible metal marker that is implanted near the tumor, and the nanoparticles released from the marker are directly incorporated into the tumor, producing the greatest anti-tumor effect during the irradiation period.

Academic Significance and Societal Importance of the Research Achievements

放射線治療マーカーを利用したナノ粒子デリバリーデバイスはまだ報告されず、本申請は医工連携共同研究の中から発案し、独創的な研究開発と言える。放射線治療装置・デバイスに関してはその80%以上が海外メーカー製品であり、国内独自の医療機器開発が強く期待される。本研究開発が達成できれば、放射線治療視認性マーカーが留置される患者症例に対してすべて適応になると考えられ、将来的に幅広く臨床応用することが期待される。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (4 results)

All 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Novel artifact‐robust and highly visible zinc solid fiducial marker for kilovoltage x‐ray image‐guided radiation therapy2020

    • Author(s)
      Wang Tianyuan、Inubushi Sachiko、Ikeo Naoko、Mukai Toshiji、Okumura Keisuke、Akasaka Hiroaki、Yada Ryuichi、Yoshida Kenji、Miyawaki Daisuke、Ishihara Takeaki、Nakaoka Ai、Sasaki Ryohei
    • Journal Title

      Medical Physics

      Volume: 47 Issue: 10 Pages: 4703-4710

    • DOI

      10.1002/mp.14412

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of the potential of using TiO2 nanoparticles as a contrast agent in computed tomography and magnetic resonance imaging2019

    • Author(s)
      Akasaka H, Mukumoto N, Nakayama M, Wang TY, Yada R, Shimizu Y, Inubushi S, Kyotani K, Okumura K, Miyamoto M, Nakaoka A, Morita K, Nishimura Y, Ogino C, Sasaki R
    • Journal Title

      Applied Nanoscience

      Volume: 02 July Issue: 8 Pages: 1-6

    • DOI

      10.1007/s13204-019-01098-y

    • NAID

      120006886624

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First-In-Human Phase 1 Study of a Nonwoven Fabric Bioabsorbable Spacer for Particle Therapy: Space-Making Particle Therapy (SMPT)2019

    • Author(s)
      Sasaki Ryohei、Demizu Yusuke、Yamashita Tomohiro、Komatsu Shohei、Akasaka Hiroaki、Miyawaki Daisuke、Yoshida Kenji、Wang Tianyuan、Okimoto Tomoaki、Fukumoto Takumi
    • Journal Title

      Advances in Radiation Oncology

      Volume: 4 Issue: 4 Pages: 729-737

    • DOI

      10.1016/j.adro.2019.05.002

    • NAID

      120006796509

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Novel biocompatible artifact-robust and highly visible fiducial marker for image-guided radiotherapy2020

    • Author(s)
      Tianyuan Wang, Naoko Ikeo, Keisuke Okumura, Hiroaki Akasaka, Ryuichi Yada, Kenji Yoshida, Daisuke Miyawaki, Takeaki Ishihara, Toshiji Mukai, Ai Nakaoka, Ryohei Sasaki
    • Organizer
      European Society for Radiation Oncology 2020 Congress
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2022-01-27  

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